Thread necromancy, ahoy.
I discovered this setting while trying to eradicate some uncontrollable feedback during rehearsal at pretty high volume on some high gain presets with my pretty hot Schecter Hellraiser Hybrid C-7 with EMGs. "Uncontrollable" as in "any time the volume is up, the setup is howling, regardless of anything else (e.g. muting, etc)". Setting that setting down to 0.18 was able to tame the feedback, but now I'm also thinking that it's likely low enough to impact "ordinary" tones since I'm driving the input at such a low level. Which makes me wonder what a logical mechanism for adjusting the input gain might be. I feel like mine is too low and I should be driving the inputs a bit harder and dealing with the howl elsewhere in the signal chain. But I'm not sure what the starting point really should be. I assume 1.0 unity gain is fit for some FAS gold standard of pickup output but I don't know where my EMGs fit, or where my PRS Silver Sky SE fits. Any thoughts?